TEL: 18931984404
Email: 1074626451@qq.com
Machinery manufacturing company from China.Choose Us, Trust Us!
Geological drill pipe is a kind of geological drilling tool which is planned and consumed by friction welding process with geological alloy steel pipe. Geological drilling rod: a geological drilling t···
The drill collar, the difference between drill pipe and drill collar, is located in the lower part of the drill string and is a part of the lower drilling assembly. Its characteristics are large wall ···
Drilling is a systematic project, and it is a combined operation in which many professions and jobs use a variety of equipment, things and materials. At the same time, it is a wheel-receiving operatio···
ch
English
